/Engine/Source/Runtime/GameplayTags/Classes/GameplayTagsManager.h
Fills in an array with all tag sources of a specific type
void FindTagSourcesWithType ( EGameplayTagSourceType TagSourceType, [TArray](API\Runtime\Core\Containers\TArray)< const [FGameplayTagSource](API\Runtime\GameplayTags\FGameplayTagSource) * > & OutArray ) const